Focused board
Large numbers, clear boxes, and calm colors keep attention on the puzzle.
Free online Sudoku
Play a clean Sudoku puzzle without the clutter.
Choose a difficulty, use notes when you need them, and keep the board focused on the numbers. Legen Sudoku is built for quick daily play and quiet concentration.
Why play here
A small Sudoku site with the details that matter.
Four difficulties
Start with easy Sudoku or move into hard and expert puzzles when you want a tougher grid.
No account required
Open the page, choose a puzzle, use notes or hints, and keep playing.
How it works
Simple controls for a classic puzzle.
Pick a difficulty
Easy, medium, hard, and expert puzzles are available from the game controls.
Fill the grid
Use the number pad or keyboard. Turn on Notes when you want candidate marks.
Check or finish
Use Check to catch mistakes, Hint when stuck, and New Game for a fresh board.
Next up
Daily puzzles, streaks, and printable boards can come later.
The first job is a fast, reliable Sudoku board. Once usage data proves people return, the site can add daily challenges, keyboard shortcuts, puzzle archives, and difficulty pages for long-tail search.
FAQ
Clear answers before the first release.
Is Legen Sudoku free?
Yes. The first version is a free online Sudoku game with no signup.
Can I use notes?
Yes. Enable Notes and add small candidate numbers to any editable cell.
Does the game work on mobile?
Yes. The board, controls, and number pad are designed to stay usable on phone screens.